Can I do the arm waves for internal rotation while side-lying?

The arm-waves exercise (an exercise that helps restore normal range of motion to the shoulder joint) for internal rotation modified to side-lying is a good alternative if your shoulders are very tight and you cannot get adequate leverage when lying on your back. Lie down on your right side with your right arm on the floor resting 90 degrees from your body and your elbow bent at 90 degrees so your hand points up toward the ceiling. With your left hand, slowly and gently help your right hand rotate forward, down to the floor.

Stop once you feel the stretch in the back of your shoulder. Hold for 30-60 seconds and return to the starting position.

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